Python-ML Rules

• Use Python ≥ 3.10 type hints (PEP-484/PEP-604).
• Prefer pathlib over os.path.
• Keep public APIs in all.
• Never commit secrets or model artefacts to git.
• Follow SOLID & GRASP (see Prompts).
• Respect ruff rules defined in pyproject.toml.
• Tests live in tests/, use pytest fixtures, ≥ 80 % coverage.